Steam-boiler.



l C. K. E. BILDT.

4STEAM BOlLER.

APPLmATloN man sEPT.121914.

1,208,082- y Patented 960.12191@ 3 SHEETS-SHEET 1.

C. K. E. BILDT.

'STEAM BOILER, APPLICATION FILED sEPT.12,1914. l l 1,208,082. PatentedDee 1 ,1916

3 SHEETS-SHEET 2.

Arrorncey.

C. 1 .E. BILDT.

STEAM BOILER,

APPLICATION FILED SEPT. 12x 1914.

1 ,208,682. l Patented Dec. 12, 1916.

3 SHEETS-SHEET 3..

if cs uistructionul .exam-ple of a locomotive boiler UMTED cam, '.KNUT ummm) mnn'nor Nonnyrxnu, SWEDEN, insre-Non-mfonazammn" mmm.' or ENGEL'SBERG, sWEnEmAND mannen-JOHAN- DANImL` -BnAUuE,- or

STOCKHOLM, SWEDEN,

smiling-nomen.

sperimentano: runi-mm. f .pgtent'edfnm 12,. 1.916,'

Application leds'cpte'mbcr 12, 1814.v Ber'inilhiflilw.

To @ZZ 'whom t may concern:

Be a known um 1 om. Kaw Ema); Emmy-subject of .the King of Sweden, and` resident of Norryikcn, in the K'igdomcf; Sweden, cng1neer, hai/.c invented certain new and usefulV Improvements 1n Stearn- Boilers, Suchv as. Lccomotivc.-Biler-s and' the like,

of which the -folloivng zis a specification, reference being lmade to the accom- Tins invention relates; to' stealn bolel-s. such as locomotive boilers and-thcflike,'of'v' provided 'with "a glas producer. and,

the kind 4 A a chamber forthecombus'tion'of the `gas generated in the producer, l l v.

A steam' -boiler constructed.- according to this invention is charactrzed,' in the. iii's't.

place by=the v fact thatlthe "producer and combustion chamber are'. in communication" with each otherthrough anwapcrturcjorpasf' sage formed or bounded a constrict'ed-or contracted part, which is surrqundedzon val1 erator and-the combustion chamber.

'this means the shell bo'dyhccnstituting the'. producer and 'combustion chamber, con. structed in a resistant anddurable: xnanner, ff aan', entedr More. than v one said iperture-or` pi1's-sage..-`v m ore"='a` steam i: boiler made. according -to vtl-"s inventionishv while in addition 'the burning'cf'tlzf of said aperture o r passage'lspr',

characterized by` amongother things. the fact that the cornb'uetion,chancb'f'e'r1 whiclrgis situated above the plf'cduceljs cylindrical 5in:`

form," Whereb'y outside fst; ys. andf bolts onV same which cause 'expense' vlindv trouble are rendered4 unnecessary;

The invention-.also 'relatos to an arrangement ofthe superheater' tubes, Avilhe'n' the boilor-is-tted-Wlth such. f The accompanying vf lrmvings illustrate a constructed:according to this ix'ire'ntion.

Figure .l is 'a vertical longitudinal section of the roar'pal't of the-steam'.boi-lor., and `I `=ig.' 2 a vertical. cross section of 'the boilerftaken through the p'roducerund the c oml'mstionvv chamber. Fig, 3 is a sidc elevation of 'the combustion clmniberand cunectcd'siipcr'- f a cross Section of f heater tubes, und 'Fig'. 4 tliv combustion chamber.;

The produce which inv the'present 'case'. is designed liu. ,fenerating' gus "from peut or .through which. a.- mixturef. of `air and' stemii,

fuel restinggon-:thegrate bars.

The Y`sheet metalx shell.. forrni-ng.; the. .producer 1 and"ccmbustonchamben:and occupy ing. fthe place-,ofthe ordinary 'furnace Eis :com

other infer-iop' fuel, and Which-.gas is burnt yin thcfcombustion chamber -2..situated=.above the Vfproduccr, is fitted withrotary, hollow grate barsgl, -n 'which there are 'openings 5,

bu'stibnfchazn r; ji's cylindrical ein' form.

' In thegconstructionalexample shown, the

' vi'ded. von teach 'side o the' producer; Owingr 'to the fact 'that-allthe'charging devices are v 'at' wiorksimultaneously, .the layer of. fuel on the` gra-tenis.-.very-vumform.. '1f necessary a larger' or :'.sm-allerfnumber: of#charging. ap-

pliances. may. bla-provided According to' the nature VVthe.. fuel 'used .gas burns ins thcv combustion los 15 chamber 20 the smoke clam producer need not be so long as when the fuel is of nferorquality V The superheater tubes 18 [are located lutera-lly of the tubes 17, extending from the 5 combustion chamber to the smoke chamber of the locomotive. These tubes also are in `communication, ut their front ends with the smoke chamber, .while their rear ends are connected to the rear part of the combustion l0 chamber, so that the superheater tubes are Tthegei and the front wall of the extension, `25 "that is to suy,

very considerably.`

Having thus described my invention what I claim es new and desire to secure by -Let ters Patent is l. In all'steam boiler of the. locomotiye or o like type, a shell formlng a gas producer and a ges combustion chamber, 'aconstricted passage connectlng said producer and combustion chamber, the walls or said pus:- sage bem 1n contact on all sides with the water of t e boiler, und means, for introchlcl' mg air for combustion, said nenne consish ing of twyers passing through the water space and projecting into said passage, said twyers being surrounded by water for sub stuntially the whole of their length from thc point where they entcr the shell of the boiler.

2. In a steam boiler of the locomotive or liketype, e, shell' forming a gas producer and a thereon7 said producer extending forwardly beyond the front of the combustion chamber, uy constricted passage directly connecting said producer und combustion chamber, the walls of said passage being in contact on all sides with the water of the boiler, and means, for introducing air for combustion, consisting of twyers passing through the water space and projecting into said passage, said tu'yers being surrounded by water for substantially the whole' of their length from the point where they enter the shell of the boiler.

In Witness whereof I have hereunto sot my hand'in presence of two witnesses.

CARL KNUT EDVARD BILDT. Witnesses:

H. B. OHLssoN,

CARL TH. Lunouomf.

gas combustion chamber superposcd 

